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Plastic fuel tank

a fuel tank and plastic technology, applied in the field of plastic or resinous fuel tanks, can solve the problems of degradation of ethylene/vinyl alcohol copolymer, and achieve the effects of reducing the cost of plastic fuel tanks, reducing the cost of recycled polyethylene materials, and eliminating concerns

Active Publication Date: 2012-11-27
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution effectively prevents fuel seepage, maintains fuel integrity, and improves weather resistance by reducing ultraviolet light degradation, while allowing easy determination of fuel levels through a reflective innermost layer, thus enhancing the tank's durability and appearance.

Problems solved by technology

It is known that the ethylene / vinyl alcohol copolymer will degrade when exposed to ultraviolet light for a long period of time.

Method used

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Examples

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Embodiment Construction

[0022]As shown in FIG. 1, a general-purpose engine 10 includes an engine assembly 11, a suction part 12 provided to a side part of the engine assembly 11 and used to draw outside air into the engine assembly 11, an exhaust part 13 provided to a side part of the engine assembly 11 and used to discharge exhaust from the engine assembly 11 to the exterior, a recoil starter 14 provided to a lower part of the engine assembly 11 and used to start up the engine assembly 11, and a recoil starter cover 15 for covering the recoil starter 14.

[0023]The general-purpose engine 10 is also provided with a plastic fuel tank 16 for storing fuel in the upper part of the engine assembly 11. The plastic fuel tank 16 includes a tank assembly 17 for storing fuel, a filler neck 18 molded integrally with the tank assembly 17 and used to introduce fuel, and a filler cap 21 mounted on the filler neck 18 and used to block the filler neck 18.

[0024]As shown in FIG. 2, the tank assembly 17 of the plastic fuel tan...

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PUM

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Abstract

A plastic fuel tank is disclosed including polyethylene layers laminated respectively onto an upper surface and a lower surface of an ethylene / vinyl alcohol layer for preventing fuel seepage. The outermost polyethylene layer laminated onto the upper surface is a high-density polyethylene layer colored black so as to minimize transmission of ultraviolet light.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a plastic or resinous fuel tank wherein a polyethylene layer is laminated via an adhesive plastic layer onto both sides of an ethylene / vinyl alcohol layer for preventing fuel seepage or permeation.BACKGROUND OF THE INVENTION[0002]In recent years, plastic fuel tanks have also come to be used in general-purpose engines and the like, and known plastic fuel tanks offering a possible solution with respect to environmental pollution are disclosed, for example, in JP-A 2004-52659.[0003]FIG. 5 hereof shows the plastic fuel tank disclosed in JP-A 2004-52659.[0004]Referring to FIG. 5, a coupling member 102 is mounted on a tank assembly 101 in a plastic fuel tank 100. The tank assembly 101 includes a barrier layer 103 constructed from an ethylene / vinyl alcohol copolymer for preventing fuel seepage; an innermost layer 104 laminated onto an interior side of the barrier layer 103, and constructed from polyethylene; and an outermost laye...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B29D22/00
CPCB32B1/02B32B27/32Y10T428/1352Y10T428/1383B32B7/12B32B27/08B32B27/20B32B27/306B32B2250/03B32B2250/40B32B2272/00B32B2307/40B32B2307/4026B32B2307/412B32B2307/712B32B2605/00B32B1/00
Inventor KOYAMA, KAZUTAKEYONEMURA, MASAHIROTABATA, YUTAKASAITOH, TERUYUKI
Owner HONDA MOTOR CO LTD
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